So going back to what I said earlier:

Quote Originally Posted by Unregistered View Post
Well, element advantage is really more relevant in the first of the two decision points.

The first decision point is:
Focus on developing 1 primary/1 secondary team (should be the quickest to reach its ceiling)
OR
Rotate elements to match the event

If you pick the former, then rainbow isn't even a thing to think about.

If you pick the latter, the next decision to make is:
Work on only SSR weapons; work with the rainbow grid as you collect more SSRs over the longterm
OR
You work on SR weapons too to get closer to monogrids for each element while waiting for SSRs
What I bolded? Apparently we don't have consistent shorthand terminology for those ideas. In this thread, we see 'mono grid' refer to both those going for the dedicated primary/secondary element strategy, as well as the last idea where you match element against event & fill out with SRs (ie the slower 6-element version of the former).